1361263443252 has 24 divisors (see below), whose sum is σ = 3211969924800. Its totient is φ = 448656115776.

The previous prime is 1361263443233. The next prime is 1361263443259. The reversal of 1361263443252 is 2523443621631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361263443259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 637294552 + ... + 637296687.

It is an arithmetic number, because the mean of its divisors is an integer number (133832080200).

Almost surely, 2^{1361263443252} is an apocalyptic number.

1361263443252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1361263443252 is an abundant number, since it is smaller than the sum of its proper divisors (1850706481548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1361263443252 is a wasteful number, since it uses less digits than its factorization.

1361263443252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1274591335 (or 1274591333 counting only the distinct ones).

The product of its digits is 622080, while the sum is 42.

The spelling of 1361263443252 in words is "one trillion, three hundred sixty-one billion, two hundred sixty-three million, four hundred forty-three thousand, two hundred fifty-two".